Dockerfile

# Build the manager binary
FROM golang:1.23-alpine AS builder

WORKDIR /workspace
# Copy the Go Modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
# cache deps before building and copying source so that we don't need to re-download as much
# and so that source changes don't invalidate our downloaded layer
RUN go mod download

# Copy the go source
COPY cmd/ cmd/
COPY internal/handlers/ internal/handlers/
COPY internal/controllers/ internal/controllers/

# Build
RUN CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH} GO111MODULE=on go build -a -o manager cmd/main.go

# Use distroless as minimal base image to package the manager binary
# Refer to https://github.com/GoogleContainerTools/distroless for more details
FROM gcr.io/distroless/static:nonroot
WORKDIR /
COPY --from=builder /workspace/manager .
COPY resources/html/ /www/
COPY resources/selectors.yaml /resources/selectors.yaml
USER nonroot:nonroot

ENTRYPOINT ["/manager"]